/***********************************************************************************************
* File Info: $Id: DualYAxis.java,v 1.2 2003/08/28 01:18:02 nathaniel_auvil Exp $
* Copyright (C) 2002
* Author: Nathaniel G. Auvil
* Contributor(s):
*
* Copyright 2002 (C) Nathaniel G. Auvil. All Rights Reserved.
*
* Redistribution and use of this software and associated documentation ("Software"), with or
* without modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain copyright statements and notices.
* Redistributions must also contain a copy of this document.
*
* 2. Redistributions in binary form must reproduce the above copyright notice, this list of
* conditions and the following disclaimer in the documentation and/or other materials
* provided with the distribution.
*
* 3. The name "jCharts" or "Nathaniel G. Auvil" must not be used to endorse or promote
* products derived from this Software without prior written permission of Nathaniel G.
* Auvil. For written permission, please contact nathaniel_auvil@users.sourceforge.net
*
* 4. Products derived from this Software may not be called "jCharts" nor may "jCharts" appear
* in their names without prior written permission of Nathaniel G. Auvil. jCharts is a
* registered trademark of Nathaniel G. Auvil.
*
* 5. Due credit should be given to the jCharts Project (http://jcharts.sourceforge.net/).
*
* THIS SOFTWARE IS PROVIDED BY Nathaniel G. Auvil AND CONTRIBUTORS ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
* jCharts OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN
* IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE
************************************************************************************************/
package org.krysalis.jcharts.demo.simpleservlet;
import org.krysalis.jcharts.axisChart.AxisChart;
import org.krysalis.jcharts.chartData.AxisChartDataSet;
import org.krysalis.jcharts.chartData.DataSeries;
import org.krysalis.jcharts.chartData.interfaces.IAxisDataSeries;
import org.krysalis.jcharts.encoders.ServletEncoderHelper;
import org.krysalis.jcharts.properties.AxisProperties;
import org.krysalis.jcharts.properties.ChartProperties;
import org.krysalis.jcharts.properties.ClusteredBarChartProperties;
import org.krysalis.jcharts.properties.DataAxisProperties;
import org.krysalis.jcharts.properties.LegendProperties;
import org.krysalis.jcharts.properties.LineChartProperties;
import org.krysalis.jcharts.properties.PointChartProperties;
import org.krysalis.jcharts.properties.util.ChartFont;
import org.krysalis.jcharts.types.ChartType;
import javax.servlet.ServletException;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.awt.*;
import java.io.IOException;
// Dual Y axis changes courtesy of St�phane NGUYEN integrated by CMC 25Aug03
// French translation courtesy of my good wife Jacki ...
public class DualYAxis extends ChartServlet {
//---all of the charts will have some properties.
private LineChartProperties lineChartProperties;
private ClusteredBarChartProperties clusteredBarChartProperties;
protected LegendProperties legendProperties;
protected ChartProperties chartProperties;
protected AxisProperties axisProperties;
//---all of the charts have the same size
protected int width = 750;
protected int height = 430;
public void init() {
//---------------------Font & Police----------------------------------------
legendProperties = new LegendProperties();
chartProperties = new ChartProperties();
axisProperties = new AxisProperties(false);
ChartFont axisScaleFont = new ChartFont(new Font("Arial Narrow", Font.PLAIN, 10), Color.black);
axisProperties.getXAxisProperties().setScaleChartFont(axisScaleFont);
axisProperties.getYAxisProperties().setScaleChartFont(axisScaleFont);
ChartFont axisTitleFont = new ChartFont(new Font("Arial Narrow", Font.PLAIN, 13), Color.black);
axisProperties.getXAxisProperties().setTitleChartFont(axisTitleFont);
axisProperties.getYAxisProperties().setTitleChartFont(axisTitleFont);
ChartFont titleFont = new ChartFont(new Font("Georgia Negreta cursiva", Font.PLAIN, 15), Color.black);
chartProperties.setTitleFont(titleFont);
//On fixe la marge avec le cadre
// Set the margin within the frame
chartProperties.setEdgePadding(2f);
//On met le graphe sur un fond gris clair
// Set the chart against a plain grey background
axisProperties.setBackgroundPaint(new Color (245, 245, 245));
//Param�trage de la bo�te de l�gende
//Parameters for the legend box
//legendProperties.setPlacement(LegendAreaProperties.RIGHT);
//legendProperties.setNumColumns(1);
//legendProperties.setFont( new Font("Arial Narrow", Font.PLAIN, 13) );
//legendProperties.setFontPaint(Color.black);
ChartFont legendFont = new ChartFont(new Font("Arial Narrow", Font.PLAIN, 13), Color.black);
legendProperties.setChartFont(legendFont);
legendProperties.setChartPadding(10);
//Arrondi � la puissance 10
//Round up to the power of 10
DataAxisProperties dataAxisProperties= (DataAxisProperties) axisProperties.getYAxisProperties();
dataAxisProperties.setRoundToNearest(1);
//Parametrage du nombre de graduation sur l'axe des ordonn�es
//Set the number of ticks(?) for the ordinal axis
dataAxisProperties.setNumItems(6);
//utilisation de la virgule s'il y a lieu (normalement non)
// Set the use of the comma if there are any (usually not)
dataAxisProperties.setUseCommas(false);
//Ne pas afficher les bordures sup�rieur et droite du chart
// Don't attach upper borders and the right of the chart
axisProperties.getYAxisProperties().setShowEndBorder(false);
axisProperties.getXAxisProperties().setShowEndBorder(false);
Stroke[] strokes = {LineChartProperties.DEFAULT_LINE_STROKE};
//Shape[] shapes = {null};
Shape[] shapes= { PointChartProperties.SHAPE_TRIANGLE };
lineChartProperties = new LineChartProperties(strokes, shapes);
clusteredBarChartProperties = new ClusteredBarChartProperties();
//Param�trage de la largeur des barres de l'histogramme et non affichage des contours
//Set the width of the bars and don't show the outline
clusteredBarChartProperties.setWidthPercentage( 0.70f );
clusteredBarChartProperties.setShowOutlinesFlag( false );
}
/**********************************************************************************************
*
**********************************************************************************************/
public void service( HttpServletRequest req, HttpServletResponse httpServletResponse ) throws ServletException, IOException
{
//---Some charts will need a second scale to render some values and then will
//---need to render an axis at the right of the charts with it
long secondScale=1;
//---specific variable use to render negative value in all case
double maxDataClustAbs = 0;
double maxDataLineAbs = 0;
int numberOfNegativ=0;
int numberOfZero=0;
try {
String[] xAxisLabels = {"MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC", "JAN", "FEB"};
double[][] dataClust = new double[][]{
{3533, 101265, 76076, 86664, 135567, 87729, 85309, 143423, 18732, 111842, 39534, 11980}
, {0, 103400, 65000, 88500, 143000, 80000, 88500, 143500, 99000, 118500, 38500, 18000}
};
double[][] dataLine = new double[][]{
{21, 4, 1, 2, 3, 2, 3, 2, 93, 18, 54, 0}
};
String title = "Chart Title";
String legendLabel1 = "Legend Label 1";
String legendLabel2 = "Legend Label 2";
String legendLabel3 = "Legend Label 3";
//IAxisDataSeries dataSeries = new DataSeries( xAxisLabels, null, null, title );
IAxisDataSeries dataSeries = new DataSeries( xAxisLabels, "X Axis title", "Left Y Axis title", title );
String[] legendLabelsClust = {legendLabel1, legendLabel2};
Paint[] clustPaints = new Paint[]{Color.pink, Color.blue};
String[] legendLabelsLine = {legendLabel3};
Paint[] linePaints = new Paint[]{Color.green};
//------------On r�cup�re une 2�me �chelle "secondScale"------------------
//------------et on fait un traitement pour les nombres n�gatifs----------
//------------We get back the 2nd scale "secondScale"---------------------
//-------------and we handle the negative numbers---------------------
//On identifie la valeur maximum absolue des data Clustered Bar
//et on compte le nombre de z�ro et le nombre de chiffres n�gatifs
// We identify the absolute maximum value of the data in the Clustered Bar
// and we count the number of zero and negative digits
for (int k=0; k<2; k++) {
for (int j=0; j<xAxisLabels.length; j++) {
if (maxDataClustAbs < (Math.abs(dataClust[k][j])) && (dataClust[k][j]!=0) ) {
maxDataClustAbs=(Math.abs(dataClust[k][j]));
}
if (dataClust[k][j]<0) {
numberOfNegativ+=1;
}
if (dataClust[k][j]==0) {
numberOfZero+=1;
}
}
}
//On identifie la valeur maximum absolue des data Line
//et on compte le nombre de z�ro et le nombre de chiffres n�gatifs
// We identify the absolute maximum value of the data lines
// and we count the number of zero and negative digits
for (int j=0; j<xAxisLabels.length; j++) {
if (maxDataLineAbs < (Math.abs(dataLine[0][j])) && (dataLine[0][j]!=0) ) {
maxDataLineAbs=(Math.abs(dataLine[0][j]));
}
if (dataLine[0][j]<0) {
numberOfNegativ+=1;
}
if (dataLine[0][j]==0) {
numberOfZero+=1;
}
}
//On d�finit la valeur de la seconde �chelle si les ordres de grandeurs
//sont tr�s diff�rent (de l'ordre de 10).
//We define the value of the second scale if the increment is an order of
//magnitude greater
if (maxDataClustAbs>10*maxDataLineAbs) {
axisProperties.getYAxisProperties().setShowRightAxis(true);
secondScale=Math.round(maxDataClustAbs/(maxDataLineAbs));
axisProperties.getYAxisProperties().setSecondScaleRight((float) (secondScale) );
ChartFont axisScaleFontRight = new ChartFont( new Font("Arial Narrow", Font.PLAIN, 10), Color.green.darker() );
axisProperties.getYAxisProperties().setScaleChartFontRight( axisScaleFontRight );
}
//On v�rifie s'il y a des valeurs n�gatives
// Check if there are negative numbers
if (numberOfNegativ>0) {
if ((maxDataLineAbs*secondScale)>maxDataClustAbs) {
axisProperties.getYAxisProperties().setMinRightAxis((double) (-maxDataLineAbs*secondScale));
//Si les valeurs ne sont pas toutes n�gatives on affiche l'axe des ordonn�es
//de mani�re a ce que le z�ro soit centr�
// If the numbers are not all negative we center the ordinal axis around zero
if (numberOfNegativ!=(3*xAxisLabels.length-numberOfZero)) {
axisProperties.getYAxisProperties().setMaxRightAxis((double) (maxDataLineAbs*secondScale));
}
} else {
axisProperties.getYAxisProperties().setMinRightAxis((double) (-maxDataClustAbs));
if (numberOfNegativ!=(3*xAxisLabels.length-numberOfZero)) {
axisProperties.getYAxisProperties().setMaxRightAxis((double) (maxDataClustAbs));
}
}
}
dataSeries.addIAxisPlotDataSet( new AxisChartDataSet( dataClust, legendLabelsClust, clustPaints, ChartType.BAR_CLUSTERED, clusteredBarChartProperties ) );
dataSeries.addIAxisPlotDataSet( new AxisChartDataSet( dataLine, legendLabelsLine, linePaints, ChartType.LINE, lineChartProperties ) );
AxisChart axisChart = new AxisChart( dataSeries, chartProperties, axisProperties, legendProperties, width, height );
ServletEncoderHelper.encodeJPEG13( axisChart, 1.0f, httpServletResponse );
}
catch( Throwable throwable ) {
//HACK do your error handling here...
throwable.printStackTrace();
}
}
}